Mascara brush



FIG. 1 is a bottom perspective view of a mascara brush showing my new design;

FIG. 2 is a top plan view of the present invention;

FIG. 3 is a bottom plan view of the present invention;

FIG. 4 is a front elevational view of the present invention, with the rear elevational view being a mirror image thereof;

FIG. 5 is a right side elevational view of the present invention;

FIG. 6 is a left side elevational view of the present invention; and,

FIG. 7 is a top perspective view of the present invention. 

The ornamental design for a mascara brush, as shown and described. 